BME280, the precision sensor from Bosch, is soldered onto PCB. Not only the pressure and the temperature, this sensor can measure humidity. It uses both I2C and SPI (supports 3-, 4-wire SPI) interface. Make sure to put SDO to high to get address 0x77>>>>>>>>>>Specifications:Supply Voltage: 1.8 - 5V DC, Interface: I2C (up to 3.4MHz), SPI (up to 10 MHz), Temperature: -40 to +85°C, Humidity: 0-100%, Pressure: 300-1100 hPa, Temperature: 0.01°C, Humidity: 0.008%, Pressure: 0.18Pa, Temperature: +-1, Humidity: +-3%, Pressure: +-1Pa, I2C address: SDO LOW 0x76, SDO HIGH£ 0x77>>>>>>>>>>Connection: GY-BME280 arduino: vin----------------vcc, GND--------------GND, SCL----------------A5, SDA----------------A4>>>>>>Package Included:1 x BME280 Pressure Temperature Sensor